i'm not sure i understand.. .. from my point of view, sham can be made with both high and low carbon wootz.... just the high carbon wootz has additional carbon to form carbides (large)
-it maybe the carbides help with cutting.... but one thing is forsure....they help alot with having a nice etch
- cutting properties are so very hard to quantify
in my opinion.... wootz is a very clean steel... there are no silicious slags.. . (the slags do not add to blade strength)
personally, I believe a fully melted steel has much better properties
obviously both ways make a fine blade
Greg
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